The physiology and hygiene of the house in which we live . the body,the medulla. The whole spinal cord might be considered asa tail to the cerebellum, and is made up of a pile of theganglia, or nerve knots, from whose sides issue thirty-onepairs of nerves, whose functions will be described later. The different parts of the nervous system have very dif-ferent duties. Unfortunately for physiology, most men ob-ject to have their brains experimented upon ; but dumbanimals have no rights that French physiologists think them- Telegraphs and Phones. 191 selves bound to respect; so they have thrust re
The physiology and hygiene of the house in which we live . the body,the medulla. The whole spinal cord might be considered asa tail to the cerebellum, and is made up of a pile of theganglia, or nerve knots, from whose sides issue thirty-onepairs of nerves, whose functions will be described later. The different parts of the nervous system have very dif-ferent duties. Unfortunately for physiology, most men ob-ject to have their brains experimented upon ; but dumbanimals have no rights that French physiologists think them- Telegraphs and Phones. 191 selves bound to respect; so they have thrust red-hot needlesthrough the various ganglia of pigeons brains and noticedwhat faculties were impaired by so doing. From these ex-periments, and the various injuries to the human brain ofwhich we have reliable accounts, it seems very probable thatits various faculties might be mapped like a geography intoregions of a—Conscious thought. b—Smell. c—Conscious sensation. d—Voluntary motion. e—Sight. f— Forwarding house. g—Vital point. -<i2.
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